set_alphas_masses_rcl

set_alphas_masses_rcl(mc, mb, mt, gc=0., gb=0., gt=0.)

Overwrites the values of the quark masses for the running of \(\alpha_\mathrm{s}\) used in the rest of the computations. The squared masses of the 3 heaviest quarks are set to the complex mass:

  • mc^2-I*mc*gc
  • mb^2-I*mb*gb
  • mt^2-I*mt*gt

and must satisfy 0 <= mc <= mb <= mt.

Parameters:
  • mc (float) – charm mass
  • mb (float) – bottom mass
  • mt (float) – top mass
  • gc (float, optional) – charm width
  • gb (float, optional) – bottom width
  • gt (float, optional) – top width